Cover fastener



FIG. 1 is a front, top and right side perspective view of a cover fastener according to the invention;

FIG. 2 is a rear, top and right side perspective view of FIG. 1;

FIG. 3 is a front elevation view of FIG. 1;

FIG. 4 is a rear elevation view of FIG. 1;

FIG. 5 is a top plan view of FIG. 1;

FIG. 6 is a right side elevation view of FIG. 1;

FIG. 7 is a bottom plan view of FIG. 1;

FIG. 8 is a left side elevation view of FIG. 1;

FIG. 9 is rear, bottom and right side perspective view of FIG. 1; and,

FIG. 10 is front, bottom and left side perspective view of FIG. 1. 

CLAIM The ornamental design for a cover fastener, as shown and described. 